<template>
  <view class="login-container">
    <!-- 提示登录的图标 -->
    <uni-icons type="contact-filled" size="100" color="#AFAFAF"></uni-icons>

    <!-- 登录按钮 -->
    <button type="primary" @click="getUserInfoHandler" class="btn-login">一键登录</button>
    
    <!-- 登录提示 -->
    <view class="tips-text">登录后尽享更多权益</view>
  </view>
</template>
<script>
import { mapState } from 'vuex'
export default {
  computed: {
    ...mapState('user', ['redirectInfo'])
  },
  methods: {
    async getUserInfoHandler() {
      const res = await uni.getUserProfile({
        desc: '获取用户信息'
      })
      const userInfo = res.userInfo
      this.$store.commit('user/updateUserInfo', userInfo)
      this.getToken(res)
    },
    async getToken(data) {
      const  { code } = await uni.login()
      const { encryptedData, iv, rawData, signature } = data
      const { meta: {status}, message } = await this.$http.post('/users/wxlogin', {
        code,
        encryptedData,
        iv,
        rawData,
        signature,
      })
      console.log(message);
      if (status !== 200) return this.$showMessage()
      this.$store.commit('user/setToken', message.token)
      // 根据user模块中存储的调过来的地址及方式 - 跳回去
      console.log('跳回去',this.redirectInfo);
      if (this.redirectInfo) {
        const { type, url } = this.redirectInfo
        if (type === 'tab') {//判断是购物车结算页面跳转过来的
          // 跳转到底部的tab
          uni.switchTab({ url })
        } else {
          uni.navigateTo({ url})
        }
      }
    }
  }
}
</script>
<style lang="scss" scoped>
.login-container {
  // 登录盒子的样式
  height: 750rpx;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background-color: #f8f8f8;
  position: relative;
  overflow: hidden;

  // 绘制登录盒子底部的半椭圆造型
  &::after {
    content: ' ';
    display: block;
    position: absolute;
    width: 100%;
    height: 80rpx;
    left: 0;
    bottom: 0;
    background-color: white;
    border-radius: 100%;
    transform: translateY(50%);
  }

  // 登录按钮的样式
  .btn-login {
    width: 90%;
    border-radius: 200rpx;
    margin: 30rpx 0;
    background-color: #c00000;
  }

  // 按钮下方提示消息的样式
  .tips-text {
    font-size: 24rpx;
    color: gray;
  }
}
</style>